Since my Cube could not run Leopard, and I did not have any other Macs, I was unable to delve into Leopard right away. Apple NL was kind enough to fix this problem for us, by generously loaning me a brand new MacBook with Leopard installed so I could review it for OSNews. Read on for the findings.

Mac OS X 10.5 Leopard is the Mac OS' 66th release (not counting the 10.x.x releases), dating back to 1984, making it one of the longest running lineage of operating systems available.

you call classic & osx one lineage and count the minor versions of the former but not the later? really strange. i'd count differently: osx 10.5.1 is the 10th major and 57th minor public release of nextstep, dating back to 1988. or the 9th major release, if you count osx 10.0 and it's big bugfix 10.1 as two - and that's the version number of the kernel and darwin.

ed.: not counting the server releases, the os of iphone & ipod & apple tv, and the public beta.